It's a bad day to be banking in Buenos Aires. The new president is announcing an economic plan designed to save the country from political and financial collapse. But, while the plan will make many economists happy, it is also likely to wipe out 30, perhaps 40 percent of the savings of many Argentines. Over the past month, people across that country have rioted over less. Argentina, once the economic pride of Latin America, is undergoing political upheaval and potential chaos.